Friedman talks about his friend, Michael Sandel, who teaches a very popular "Justice" course at Harvard. His course is so popular that it has recently been translated in Korean. He recently lectured to 14,000 people with audience participation. His course is also very popular in China with more than 20 million views.
Why is his course so popular? Because it is outstanding, not mediocre. As Friedman says, when outstanding becomes so readily available, average is over.
This is where the technology combined with outstanding teaching combines to disrupt the averate professor. So MOOCs will leverage the best and make them available to all. The impact will be on the university AND the professors of those universities.